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A circle has a radius of 10 inches. Find the approximate length of the arc intersected by a central angle of [tex]$\frac{2 \pi}{3}$[/tex].

A. 6.67 inches
B. 10.47 inches
C. 20.94 inches
D. 62.8 inches

Answer :

To find the length of the arc intersected by a central angle, you can use the following formula:

[tex]\[ \text{Arc Length} = \text{Radius} \times \text{Central Angle (in radians)} \][/tex]

Here's how you would solve it step-by-step:

1. Identify the radius of the circle: The problem states that the radius is 10 inches.

2. Identify the central angle: The central angle given is [tex]\(\frac{2\pi}{3}\)[/tex] radians.

3. Calculate the arc length:
[tex]\[
\text{Arc Length} = 10 \times \frac{2\pi}{3}
\][/tex]
This results in:
[tex]\[
\text{Arc Length} \approx 20.94 \text{ inches}
\][/tex]

So, the approximate length of the arc intersected by the central angle [tex]\(\frac{2\pi}{3}\)[/tex] is 20.94 inches.

Therefore, the correct answer from the options provided is 20.94 inches.

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Rewritten by : Jeany